Square D FA36030 - 30 A, 600 V, 3-Pole Plug-In Circuit Breaker | AmpState

The Square D FA36030 is a 30A, 600V, 3-pole plug-in molded case circuit breaker engineered to protect branch circuits in panelboards and load centers. Designed for fast installation and dependable protection, it integrates seamlessly with compatible Square D systems to safeguard electrical infrastructure in a range of settings—from homes to light commercial environments.

Fast, reliable plug-in installation

With a quick plug-in connection, this breaker snaps into compatible panelboards and load centers, enabling swift installation and straightforward replacements during maintenance or upgrades. Its plug-in mounting reduces downtime and simplifies service calls for electricians and facilities teams.

Thermal-magnetic protection you can trust

The built-in thermal-magnetic trip unit delivers stable, repeatable protection. The thermal component senses prolonged overcurrent conditions to prevent nuisance trips, while the magnetic element responds to short-circuit surges with an instantaneous trip, helping to shield wiring and connected equipment from damage.

OEM-compatible reliability

Manufactured to fit matching Square D OEM load centers and panelboards, the FA36030 ensures proper fit, correct listing, and coordinated protection within your existing electrical infrastructure. This compatibility makes it an excellent choice for both new installations and retrofits in systems that rely on Square D gear.

Technical snapshot

• Amperage rating: 30 A
• Voltage rating: 600 V
• Number of poles: 3
• Mounting style: Plug-in
• Type: Thermal-magnetic molded case circuit breaker
• Manufacturer: Square D
• Part number: FA36030

Ideal use cases and practical applications

• Residential panelboards and subpanels requiring reliable 30A protection for branch circuits
• Commercial installations—lighting, outlets, and small equipment circuits in office or retail spaces
• Light industrial applications where robust overcurrent and short-circuit protection is essential
• Replacement for existing plug-in breakers in Square D systems to minimize downtime and maintain uniform protection

Whether you’re upgrading an aging panel, wiring a new commercial space, or stocking a maintenance cart with OEM-ready parts, the FA36030 delivers precise, dependable protection for 3-pole, 30A circuits in up to 600V systems. Trust in Square D engineering to keep your electrical infrastructure safe and compliant.